1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::Metrics::Samplers::PumaSampler do
subject { described_class.new(5) }
let(:null_metric) { double('null_metric', set: nil, observe: nil) }
before do
allow(Gitlab::Metrics::NullMetric).to receive(:instance).and_return(null_metric)
end
describe '#sample' do
before do
expect(subject).to receive(:puma_stats).and_return(puma_stats)
end
context 'in cluster mode' do
let(:puma_stats) do
<<~EOS
{
"workers": 2,
"phase": 2,
"booted_workers": 2,
"old_workers": 0,
"worker_status": [{
"pid": 32534,
"index": 0,
"phase": 1,
"booted": true,
"last_checkin": "2019-05-15T07:57:55Z",
"last_status": {
"backlog":0,
"running":1,
"pool_capacity":4,
"max_threads": 4
}
}]
}
EOS
end
it 'samples master statistics' do
labels = { worker: 'master' }
expect(subject.metrics[:puma_workers]).to receive(:set).with(labels, 2)
expect(subject.metrics[:puma_running_workers]).to receive(:set).with(labels, 2)
expect(subject.metrics[:puma_stale_workers]).to receive(:set).with(labels, 0)
expect(subject.metrics[:puma_phase]).to receive(:set).once.with(labels, 2)
expect(subject.metrics[:puma_phase]).to receive(:set).once.with({ worker: 'worker_0' }, 1)
subject.sample
end
it 'samples worker statistics' do
labels = { worker: 'worker_0' }
expect_worker_stats(labels)
subject.sample
end
end
context 'with empty worker stats' do
let(:puma_stats) do
<<~EOS
{
"workers": 2,
"phase": 2,
"booted_workers": 2,
"old_workers": 0,
"worker_status": [{
"pid": 32534,
"index": 0,
"phase": 1,
"booted": true,
"last_checkin": "2019-05-15T07:57:55Z",
"last_status": {}
}]
}
EOS
end
it 'does not log worker stats' do
expect(subject).not_to receive(:set_worker_metrics)
subject.sample
end
end
context 'in single mode' do
let(:puma_stats) do
<<~EOS
{
"backlog":0,
"running":1,
"pool_capacity":4,
"max_threads": 4
}
EOS
end
it 'samples worker statistics' do
labels = {}
expect(subject.metrics[:puma_workers]).to receive(:set).with(labels, 1)
expect(subject.metrics[:puma_running_workers]).to receive(:set).with(labels, 1)
expect_worker_stats(labels)
subject.sample
end
end
end
def expect_worker_stats(labels)
expect(subject.metrics[:puma_queued_connections]).to receive(:set).with(labels, 0)
expect(subject.metrics[:puma_active_connections]).to receive(:set).with(labels, 0)
expect(subject.metrics[:puma_running]).to receive(:set).with(labels, 1)
expect(subject.metrics[:puma_pool_capacity]).to receive(:set).with(labels, 4)
expect(subject.metrics[:puma_max_threads]).to receive(:set).with(labels, 4)
expect(subject.metrics[:puma_idle_threads]).to receive(:set).with(labels, 1)
end
end
|
